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TW201024991A - Apparatus for auto-regulating the input power source of driver - Google Patents

Apparatus for auto-regulating the input power source of driver Download PDF

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Publication number
TW201024991A
TW201024991A TW097151895A TW97151895A TW201024991A TW 201024991 A TW201024991 A TW 201024991A TW 097151895 A TW097151895 A TW 097151895A TW 97151895 A TW97151895 A TW 97151895A TW 201024991 A TW201024991 A TW 201024991A
Authority
TW
Taiwan
Prior art keywords
voltage
semiconductor switch
source
resistor
driver
Prior art date
Application number
TW097151895A
Other languages
Chinese (zh)
Other versions
TWI385510B (en
Inventor
Ho-Pu Hsiao
Nung-Te Huang
Chih-Wan Hsu
Original Assignee
Asustek Comp Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asustek Comp Inc filed Critical Asustek Comp Inc
Priority to TW097151895A priority Critical patent/TWI385510B/en
Priority to US12/641,290 priority patent/US8760140B2/en
Publication of TW201024991A publication Critical patent/TW201024991A/en
Application granted granted Critical
Publication of TWI385510B publication Critical patent/TWI385510B/en

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current 
    • G05F1/46—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC
    • G05F1/56—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
    • H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
    • H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0032—Control circuits allowing low power mode operation, e.g. in standby mode
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

An apparatus for auto-regulating the input power source of a driver is provided. The apparatus includes a load detector and a controller. The load detector detects a load current, and outputs a detection signal according to the load current. The controller is coupled to the load detector that received the detection signal. The controller provides an operation voltage between a first voltage and a second voltage, wherein the first voltage is less than the second voltage. The operation voltage is supplied to the driver and regulated flexibility according to different load demand. In the light loading, the device for auto-regulating the input power source can improve the use efficiency of electric power.

Description

201024991 vy/v〇yjA ^ol83twf.doc/n 六、發明說明： 【發明所屬之技術領域】 本發明是有關於-種省電節能的技術，且特別是有關 於一種自動調整驅動器輸入電源之裝置。 【先前技術】 由於節能議題日益受到重視，因此如何減少電能轉換 ❹ 祕巾的損失以增加電力轉換效率已成為各廠商積極研究 的方向之一。 圖1繪示以固定電壓源供應驅動器的方塊圖。請參見 圖1。傳統作法，提供給驅動器（driver)的電源輸入端 vcc的電壓是一個固定的電壓源。此驅動器的電壓源可能 ： 是5伏或是12伏。將固定電壓源直接供應給驅動器來驅^ 主機板上的中央微處理器（CPU)。但是，在一般使用者 使用電腦的情況下，CPU長時間處於輕載的狀態，cpu只 ❹有在少部分的時間會有密集運算而處於重载的情況。由於 主機板的使用會有負載變化情形，當主機板的使用情形屬 於輕載情況’若以12伏提供給驅動器來做驅動則會有不必 要的功率浪費。 备系統處於重載時，驅動功率開關元件所需要的電堡 也就越大，但當系統處於輕載時，驅動功率開關元件所需 要的電壓並不需要很高。因此，傳統的固定電歷源供應電 月b方式顯得沒有彈性，無論系統處於輕載或重載皆無法改 受驅動器的電壓源，並且會造成不必要的驅動損失。 3 201024991 \jy~j\jlS3twf.doc/n 【發明内容】 本發明提供-種自動調整驅勢器輸入電源之 據驅動器卿朗貞㈣流的變化來雜供 ^ 力的使用不浪費。 澄便電 梦出一種自動調整驅動器輸入電源之裝置。此 、ΐ二f载偵測器以及控制器。負載偵測器偵測負载電 々丨L，艮虞負載電流輪出偵測信號。控制哭相、恭占 自二=:==r 電™ 提供驅動器的輪入電壓源，靈活調整電ί載需求來彈性地 也解決電源設計的難題。技1 讀時的電力浪費， 為讓本發明之上述特徵和 舉實施例，並配合所附圖式作詳心易憧，下文特 【實施方式】 圖2繪示依據本發明實施例 源之裳置的電路方塊圖。請參動·驅動器輸入電 輸入電源之裝置2〇可以包人’自、，此自動調整驅動器 24。負載_器22#測主機測器22以及控制器 價則主機板上負载28的使用情形，將 201024991 ^ ν/^/νον-ώ. 18jtwf.(i〇c/n 偵測到的電流反應成一電壓作缺 化而輸出偵測信號SDET。負巷：’二即根據負載電流的變 號與偵測到的電流成正比。护、^，22所輸出的電壓信 並接收偵測信號SDET。控制器 ^耦接負載偵測器22 小來提供介於第-錢（州）4至根_測信號 Sdet 的大 間的操作電壓VDR職。自動調整:電壓（ + 12V)之 26 2〇 ^ 主機板的制情形屬於重载情況，自_ 20可以切至第二電壓（ + 12v);各主 電源裝置 於輕载情況，裝置20可以切至第情3 判斷負載輕重的標準可以由設計卫程師 ^因，自動調整輸入電源裝置2〇可以將施二 彈性的切換’可以減少不必要的驅動損失而 提升成源效率。 本實施例利用自動調整驅動器輸入電源之裝置來判斷 系統是處於輕載或重載，再進而調變驅動器的賴源，使 系統在輕載時能有效降低驅動損失，進而提升系統效率。 圖3繪示依據本發明實施例的控制器的電路圖。請參 照圖3。前述的判斷負载輕重的標準可以進一步運用一參 考信號vREF來實施，參考信號Vref可以是運用電阻分壓 器（未繪示）的某一電壓值。控制器3〇可以將偵測信號 Sdet與參考仏號vREF以一比較器32做比較。比較器32的 弟輸入％接收參考信號Vref，比較器32的第二輸入端 接收偵測信號SDET，接著根據比較器32所產生的比較結 5 -J183twf.doc/n 201024991 ，sGATE來切換電源路徑’以提供操作電麗Vdr給驅動 器（未繪示）。例如’當侧信號8财低於或等於參考传 號VREF時表示為輕載，比較器32輪出為邏輯高準位’ ^ 7以提^第-電壓（+5V)給驅動器來運作；而當谓測信 號sDET向於參考信號Vref時表示為重載，比較器％輪 低準位，則可以提供第二電壓（ + i2v)給_ = 圖3的控制器30為兩段式電壓源調整器 可=含半導體開關34、電阻R1、二極體m、 比較斋32。—極體D1的第一端耦接第—電壓（+ 。 半導體開關34可以為p型半導1 ^ 。201024991 vy/v〇yjA ^ol83twf.doc/n VI. Description of the Invention: [Technical Field] The present invention relates to a technology for saving energy and energy, and more particularly to a device for automatically adjusting an input power of a driver . [Prior Art] As energy conservation issues are increasingly valued, how to reduce the power conversion ❹ the loss of the secret towel to increase the power conversion efficiency has become one of the research directions of various manufacturers. Figure 1 shows a block diagram of a driver supplied with a fixed voltage source. See Figure 1. Traditionally, the voltage supplied to the driver's power input, vcc, is a fixed voltage source. The voltage source for this driver may be: 5 volts or 12 volts. A fixed voltage source is supplied directly to the drive to drive the central microprocessor (CPU) on the motherboard. However, in the case where the general user uses the computer, the CPU is in a light load state for a long time, and the CPU only has a heavy operation in a small part of time and is in a heavy load. Since the use of the motherboard has a load change situation, when the use condition of the motherboard is a light load condition, if the driver is supplied to the driver at 12 volts, there is unnecessary power waste. When the standby system is under heavy load, the electric bunker required to drive the power switching element is larger, but when the system is under light load, the voltage required to drive the power switching element does not need to be high. Therefore, the traditional fixed electrical calendar source supply circuit b mode is not flexible, no matter whether the system is light or heavy, it can not change the voltage source of the driver, and will cause unnecessary driving loss. 3 201024991 \jy~j\jlS3twf.doc/n [Summary] The present invention provides a kind of automatic adjustment of the input power of the driver, and the change of the flow of the miscellaneous supply force is not wasted. Cheng Jun Electric dreamed of a device that automatically adjusts the input power of the drive. This, the second load detector and the controller. The load detector detects the load voltage 艮虞L, and the load current is rotated out of the detection signal. Controlling the crying phase, companionship from the second =: == r Electric TM provides the driver's wheel-in voltage source, flexible adjustment of the electric load demand to flexibly solve the power supply design problem. In order to make the above-mentioned features and embodiments of the present invention, and to make the details of the present invention in conjunction with the drawings, the following is a detailed description. [Embodiment] FIG. 2 shows a skirt according to an embodiment of the present invention. Set the circuit block diagram. Please refer to the driver's input power input device 2〇 can be packaged as 'self, this automatically adjusts the drive 24. The load_device 22# measures the host detector 22 and the controller price of the load 28 on the motherboard, and reacts the current detected by 201024991 ^ ν/^/νον-ώ. 18jtwf. (i〇c/n into one The voltage is reduced and the detection signal SDET is output. Negative lane: 'Second, the variable value according to the load current is proportional to the detected current. The voltage signal output by the protection, ^, 22 receives the detection signal SDET. The device is coupled to the load detector 22 to provide a large operating voltage VDR between the first money (state) 4 and the root signal Sdet. Automatic adjustment: voltage (+ 12V) 26 2 〇 ^ motherboard The system situation is a heavy load situation, from _ 20 can be cut to the second voltage (+ 12v); each main power unit is in light load condition, the device 20 can be cut to the third situation to judge the load weight standard can be designed by the designer ^, the automatic adjustment of the input power supply device 2 can be used to reduce the unnecessary drive loss and improve the source efficiency. This embodiment uses a device that automatically adjusts the input power of the driver to determine whether the system is at light load or Overloading, and then modulating the drive's source, The system can effectively reduce the driving loss when lightly loaded, thereby improving the system efficiency. Figure 3 is a circuit diagram of the controller according to the embodiment of the present invention. Please refer to Figure 3. The foregoing criterion for determining the weight of the load can further utilize a reference signal. The vREF can be implemented, and the reference signal Vref can be a certain voltage value using a resistor divider (not shown). The controller 3 can compare the detection signal Sdet with the reference signal vREF by a comparator 32. The younger input 32 receives the reference signal Vref, the second input of the comparator 32 receives the detection signal SDET, and then switches the power path ' according to the comparison result generated by the comparator 32 5-J183twf.doc/n 201024991, sGATE The operating device Vdr is provided to the driver (not shown). For example, when the side signal 8 is lower than or equal to the reference signal VREF, it is expressed as light load, and the comparator 32 is turned to the logic high level '^7 to raise ^ The first voltage (+5V) is operated by the driver; when the preamble signal sDET is referred to as the reload with respect to the reference signal Vref, and the comparator % wheel is low, the second voltage (+i2v) can be supplied to _ = Figure 3 control The device 30 is a two-stage voltage source regulator, which can include a semiconductor switch 34, a resistor R1, a diode m, and a comparator 32. The first end of the body D1 is coupled to the first voltage (+. The semiconductor switch 34 can be P-type semiconducting 1 ^ .

第-獅_第電關。+導體開關34的 柄接弟一級（+12v)。電阻R 體開關34的第一源她與間極之間。= 4的第一源/汲極搞接二極體Μ的第—端。二〇汗 的弟一端耦接二極體D1的第二端 赵 處提供操彳_ Vdriver_。射，味 測仏號sDET與參考信號Vref所產生的比 乂 、 半導體_ 3 4的酿。操作電壓％_ R的^3= Ξ :路徑。第一電源路徑為第—電壓(+5”經:二:： =輸出操作電壓V_ER。第二電祕徑騎 : 12V )經由半導體開關34、二極體D2，接著輪堅^ Vdr職。也就是當斷開（tum ) 關呆乍電壓 以提供第-t❿账驅㈣^^ 34時則可 半導體開關34時則可以提供第二電壓（+=(:= 6 ^JI83twf.doc/n 201024991 來運作。 ❿ ❿ 圖4繪不依據本發明另一實施例的控制器的電路圖。 請參照圖4。控制器4〇為一降壓調節器（1〇w djOp〇ut regul扯or ’ LDO)。控制器4〇包含電阻犯、電阻R3、半 導體開關44、以及運算放大器42。半導體開關44可以為 N型半導體開關。半導體開關44的第一源/没極祕第二 電壓（+12V)。半導體開關44的第二源/汲極柄接電阻 R2的第一端’並且從半導體開關44的第二源/汲極提供操 作電壓VDRIVER。電阻R3的第一端耦接電阻R2的第二端， 電阻R3的第二端耦接接地電壓GND。運算放大器44的 ”輸入端耦接偵測信號sDET，運算放大器44的“”輸入 端耦接電阻R3的第—端。運算放大器44的輪出 導體開關44的閘極。當系統的負載電流越大，操作電壓 VDRIvER也隨之線性升高；而當系統的負載電流越小，操作 電壓VDRIVERt隨之線性下降。其中，操作電壓^隨 偵測信號SDET的大小成比例的變化，操作電壓V 最小值等於帛-賴。 ^ DRIVER ^ 圖5繪示依據本發明另—實施例的控制器的電路圖。 請參照圖5。控制器50為一線性電壓調整器。控制器％ 可以包含電阻R4、R5、電容器α、C2、半導&關 以及運算放大器52。半導體開關54可以為N 關。半導體開關54的第二源你_接第二電壓（+ 12,開 半導體開關54的第-源/沒極輕接電容器〇的第盘 阻R5的第-端，並且從半導體開關54的第—源/汲極提: -----J l83twf.doc/n 201024991 壓2。運算放大器52的‘‘+，，輪入婦 ϊ 運异放大器52的“―，，輸入端耗接電阻R5的第 器5二的輸出端瓣導體開關54的間極。 接電阻R5的第—端。電容器ci的 “第^ =壓GND。電容器C2的第—端輕接電阻 的第一電谷器C2的第二端耗接電阻R5的第 ❿ ❿ ^Γ 1的第二翻接接地電壓漏。運算放大器52的 ，出1自動調節半導體開關54上的跨壓，使得操作電麼 於運异放大g 52❾“ +，，輪入端的偵測信號 系統的負載電流越大，操作頓％戰也隨之 士碎Γ而虽系統的負載電流越小，操作電壓Vdriver Z t m _電壓Vdriver隨備測信號Sdet 2二:成比例的變化，操作電壓Vdr臟的最小值等於第 '~電壓。 圖晴7F依據本發明另—實施例的控制器的電路圖。 控制器60為切換式電源轉換器。切換式電源 感器u、電感器L2、電容器c3、半導體開 i。带Λ導開1^66、運算放大器62、以及電源轉換器 ”沾=裔y曰的第—端輕接第二電麼（+ΐ2ν)。電感器 α &弟—端提供操作電塵v_er的輸出。半導體開關 、、、5可以為N型半導體開關。半導體開關64的第^源/ 汲極減電感器U的第二端^半導體開關&的第二源/ :及極接電感裔L2的第一端與半導體開關％的第一源/汲 半Vto開關66的第二源/汲極耦接接地電壓GND。電 8 201024991 --------Ji83twf.doc/n 容器C3的第一端耦接電感器L2的第二端。電容器c2 第二端耦接接地電壓GND。運算放大器62的“ +，繁婭 ，接侧信號SDET。運算放大器62的“―”輸人端^電 器L2的第二端。電源轉換器68接收運算放大器62 _ 出電壓來啟動電源轉換器68。電源轉換器68的上閑驅= 接腳UG耗接半導體開關64的閘極。電源轉換器的 閘驅動接腳LG麵接半導體開關66的閘極。電源轉 6β8控制半導體開關64 *㈣閘極而可以調節輸出操作; 壓vDRIVER。操作電壓Vdriver等於運算放大器&的“+，, 輸=端输勤靖號8酣。故# f、統的負載電流越大，操 作電壓VDRIVERt隨之線性升高，而當系統的負載電流越 小，操作電壓Vdriver也隨之線性下降。其中，操作電壓 vDRIVER隨偵測信號Sdet的大小成比例的變化，操作=壓 Vdriver的最小值等於第一電壓。 綜上所述，本發明自動調整驅動器輸入電源之裝置能 自曰動侧當下系統的使用狀態’依不同負載需求來彈性地 參 提供驅動盗的輸入電壓源，靈活調整電壓。此自動調整輸 入電源裝置至少可以產生如下的功效與優點： 1. 提供驅動器輸入電源的降壓機制； 2. 依主機板的使用情形來切換驅動器輸入電源，當在 輕載時可以實現節能； 3·系統在輕載時能有效降低驅動損失，進而提升系統 效率； 4.可以動態調整電源，實現電力轉換的最佳化效率。 9 201024991 / v 183twf*.doc/n 雖然本發明已以實施例揭露如上，然其並 ^ 本發明，任何所屬技術領域中具有通常知識者，以限定 本發明之精神和範圍内，當可作些許之更動與潤不脫離 發明之保護顧當視後狀中料職騎界定者為=本 【圖式簡單說明】 圖1繪不以固定電壓源供應驅動器的方塊圖。The first - lion _ the first electric pass. + The handle of the conductor switch 34 is connected to the first level (+12v). The first source of the resistor R body switch 34 is between her and the interpole. The first source/dole of = 4 is connected to the first end of the diode. The second end of the second sweat is coupled to the second end of the diode D1. Zhao provides the operation _ Vdriver_. Shooting, taste 仏 sDET and reference signal Vref produced by the ratio 乂, semiconductor _ 3 4 brewing. ^3= Ξ : path of operating voltage %_ R. The first power path is the first voltage (+5) via: two:: = output operating voltage V_ER. The second electric path is riding: 12V) via the semiconductor switch 34, the diode D2, and then the wheel is firmed. That is, when the voltage is turned off (tum) to provide the first-t credit (four) ^^ 34, the second voltage can be supplied when the semiconductor switch 34 is available (+=(:= 6 ^JI83twf.doc/n 201024991运作 ❿ Figure 4 depicts a circuit diagram of a controller not according to another embodiment of the present invention. Referring to Figure 4, the controller 4 is a buck regulator (1〇w djOp〇ut regul or 'LDO). The controller 4A includes a resistor, a resistor R3, a semiconductor switch 44, and an operational amplifier 42. The semiconductor switch 44 can be an N-type semiconductor switch. The first source of the semiconductor switch 44 is a second voltage (+12V). The second source/drain of the switch 44 is connected to the first end of the resistor R2 and provides an operating voltage VDRIVER from the second source/drain of the semiconductor switch 44. The first end of the resistor R3 is coupled to the second end of the resistor R2. The second end of the resistor R3 is coupled to the ground voltage GND. The "input terminal of the operational amplifier 44 is coupled to the detection signal s. DET, the "" input terminal of the operational amplifier 44 is coupled to the first end of the resistor R3. The operational amplifier 44 is turned off the gate of the conductor switch 44. When the load current of the system is larger, the operating voltage VDRIvER also linearly rises; When the load current of the system is smaller, the operating voltage VDRIVERt decreases linearly. Among them, the operating voltage is proportional to the size of the detection signal SDET, and the minimum value of the operating voltage V is equal to 帛-赖. ^ DRIVER ^ Figure 5 A circuit diagram of a controller according to another embodiment of the present invention is shown in Fig. 5. The controller 50 is a linear voltage regulator. The controller % may include resistors R4, R5, capacitors α, C2, semiconducting & The operational amplifier 52. The semiconductor switch 54 can be N-off. The second source of the semiconductor switch 54 is connected to the second voltage (+12, the first source of the semiconductor switch 54 is turned on and the first plate of the semiconductor switch 54 is replaced by the fifth resistor R5. The first end, and from the first source / drain of the semiconductor switch 54: -----J l83twf.doc/n 201024991 pressure 2. The operational amplifier 52 ''+,, turn into the women and children, the differential amplifier 52 "-, the input end consumes the resistor R5 The second end of the output end-petal conductor switch 54 is connected to the first end of the resistor R5. The capacitor ci "the ^ = voltage GND. The first end of the capacitor C2 is connected to the second electric resistor C2 of the resistor The second connection ground voltage leakage of the first 耗 Γ ^ Γ 1 of the resistor R5 is reversed. The output voltage of the operational amplifier 52 automatically adjusts the voltage across the semiconductor switch 54 so that the operation power is amplified by the operation. The greater the load current of the detection signal system at the wheel end, the operation of the % battle is also broken. Although the load current of the system is smaller, the operating voltage Vdriver Z tm _ voltage Vdriver along with the standby signal Sdet 2: In proportion to the change, the minimum value of the operating voltage Vdr is equal to the '~ voltage. Figure 7F is a circuit diagram of a controller in accordance with another embodiment of the present invention. Controller 60 is a switched power converter. Switching power supply sensor u, inductor L2, capacitor c3, semiconductor open i. With the Λ guide open 1 ^ 66, the operational amplifier 62, and the power converter "dip = y y 曰 — 轻 轻 轻 轻 轻 轻 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 The output of the semiconductor switch, , 5 can be an N-type semiconductor switch. The second terminal of the semiconductor source switch 64 of the source/drain deductor U is the second source of the semiconductor switch & The first end of L2 is coupled to the second source/drain of the first source/half-half Vto switch 66 of the semiconductor switch % to the ground voltage GND. Power 8 201024991 --------Ji83twf.doc/n Container C3 The first end of the capacitor is coupled to the second end of the inductor L2. The second end of the capacitor c2 is coupled to the ground voltage GND. The operational amplifier 62 is "+, ya, connected to the side signal SDET. The "-" input terminal of the operational amplifier 62 is the second end of the electric device L2. The power converter 68 receives the operational amplifier 62 _ output voltage to activate the power converter 68. The upper idle drive of the power converter 68 = the pin UG consumes the gate of the semiconductor switch 64. The gate drive pin LG of the power converter is connected to the gate of the semiconductor switch 66. Power supply 6β8 control semiconductor switch 64 * (four) gate to adjust the output operation; pressure vDRIVER. The operating voltage Vdriver is equal to the "+," of the operational amplifier & the output voltage is 8 酣. Therefore, the larger the load current of the system, the higher the operating voltage VDRIVERt rises linearly, and the load current of the system increases. Small, the operating voltage Vdriver also decreases linearly. Among them, the operating voltage vDRIVER varies proportionally with the size of the detection signal Sdet, and the operation = the minimum value of the voltage Vdriver is equal to the first voltage. In summary, the present invention automatically adjusts the driver The device for inputting power can flexibly adjust the voltage by flexibly adjusting the voltage according to the different load requirements of the current system. The automatic adjustment of the input power supply device can at least produce the following functions and advantages: 1. Provide the step-down mechanism of the input power of the driver; 2. Switch the input power of the driver according to the use condition of the motherboard, and save energy when it is lightly loaded; 3. The system can effectively reduce the drive loss at light load, thereby improving the system. Efficiency; 4. The power can be dynamically adjusted to optimize the efficiency of power conversion. 9 201024991 / v 183twf*.doc/n Although this is the hair The present invention has been disclosed in the above embodiments, and it is intended to be within the spirit and scope of the invention, and may be modified and protected without departing from the invention. The definition of the rear-mounted material is defined as = This is a block diagram of the driver that is not supplied with a fixed voltage source.

、淨少:依據本發明實施例的自動調整驅動器輸入電 源之裝置的電路方塊圖。 圖3緣=依據本發明實施例的控制器的電路圖。 圖4繪二依據本發明另—實施例的控制器的電路圖。 圖5緣示依據本發明另-實施例的控制ϋ的電路圖。 圖6緣不依據本發明另—實施例的控彻的電路圖。 【主要元件符號說明】 20:自動調整驅動器輸入電源之裝置 • 22 :負载偵測器 24 :控制器 26 .驅動器 28 ·負载 30 :控制器 32:比較器 34 :半導體開關 40 :控制器（降壓調節器） .Jl83twf.doc/n 201024991 42 :運算放大器 44 :半導體開關 50:控制器（線性電壓調整器） 52 :運算放大器 54 :半導體開關 60 :控制器 62 ··運算放大器 64、66 :半導體開關 • 68 :電源轉換器 C1〜C3 :電容器 D卜D2 :二極體 GND :接地電壓 U、L2 :電感器 R1〜R5 :電阻 Sdet .偵測信號 Sgate · 比較結果 vcc:電源輸入端 Vdriver : 操作電壓 VrjeF ·蒼考信號 11Net less: A block diagram of a device for automatically adjusting a driver input power source in accordance with an embodiment of the present invention. Figure 3 is a circuit diagram of a controller in accordance with an embodiment of the present invention. 4 is a circuit diagram of a controller in accordance with another embodiment of the present invention. Figure 5 is a circuit diagram showing a control port in accordance with another embodiment of the present invention. Figure 6 is a circuit diagram of a control that is not in accordance with another embodiment of the present invention. [Main component symbol description] 20: Device for automatically adjusting the input power of the driver • 22: Load detector 24: Controller 26. Driver 28 • Load 30: Controller 32: Comparator 34: Semiconductor switch 40: Controller (drop Voltage regulator) .Jl83twf.doc/n 201024991 42 : Operational amplifier 44 : Semiconductor switch 50 : Controller (linear voltage regulator) 52 : Operational amplifier 54 : Semiconductor switch 60 : Controller 62 · Operational amplifier 64 , 66 : Semiconductor switch • 68: Power converter C1~C3: Capacitor D Bu D2: Diode GND: Ground voltage U, L2: Inductor R1~R5: Resistance Sdet. Detection signal Sgate · Comparison result vcc: Power input Vdriver : Operating voltage VrjeF · Cang test signal 11

Claims (1)

201024991 “ Jl83twf".d〇c/ii 七、申請專利範圍： 1. -種自動調整驅動器輸入電源之裝置，包括： —負載偵測器，债測—負載雷、、& - ,θ A ^ 來輪出—侧信號；以及電机’亚根據该負载電流 並相摅’餘接該負載侧11來接收該侧信號， 號來提供介於-第-電壓至-第二電麗之 ❿ ❹ =電壓，該操作電壓㈣提供給該 该第一電壓小於該第二電壓。 八甲 入電項所述之自動調整驅動器輪 做比較，將該侧信號與—參考信號 —電壓給“二Ϊ於或等於該參考信號則提供該第 供該第二電壓給;驅動=_信號高於該參考信號則提 入電源之1項所述之自動調整驅動器輪 /、中该控制器包括： 耦接該第二體開關’該第-半導體開關的第-源/汲極 半導體開關的第一源/¾ 备體的第一端耦接該第一 '極體的第一端耦接該第 盘鬥r第一電阻’_於該第 與閘極之間； 一第一二極體，該第__ 壓；以及 — 弟一一極體，該楚一— 導體開關的第二源叫^二極體的第—端搞接該第 —二極體的第二端，並接=「一極體的第二端搞接 知供該操作電壓的輸出 12 201024991 w^/υουζ jul83twf.doc/n ^ 較器，該比較器的第—輸人端接收—參考信號， «亥比車乂⑤的第—輸人端接收該侧信號，該比較器產生一 比較結果來控制該第—半導體開關的閘極。 4. 如申凊專利範圍第3項所述之自動調整驅動器輸 入電源之裝置’其中該第—半導體開關為^半導體開關。 5. 如h專利範圍第丨項所述之自動調整輸入電源 之裝置，其中該控制器包括：201024991 “ Jl83twf".d〇c/ii VII. Application scope: 1. A device for automatically adjusting the input power of the driver, including: — load detector, debt measurement — load lightning, & - , θ A ^ The wheel-out signal is output; and the motor 'sub-according to the load current and 余' is connected to the load side 11 to receive the side signal, the number is provided to provide - between -voltage to -second 丽 ❹ = voltage, the operating voltage (four) is supplied to the first voltage is less than the second voltage. The automatic adjustment driver wheel described in the eighth power entry is compared, and the side signal and the reference signal voltage are given to And the reference signal provides the second voltage to be supplied; the drive=_ signal is higher than the reference signal, and the automatic adjustment driver wheel is referred to in the power supply. The controller includes: coupling the first The first end of the first source/drain device of the first-source/drain semiconductor switch of the first-semiconductor switch is coupled to the first end of the first 'pole body and coupled to the first disk a resistor '_ between the first and the gate; a first diode The first __ pressure; and - the first one of the body, the second source of the conductor switch is called the second end of the diode to engage the second end of the second diode, and then = " The second end of the pole body is connected to the output of the operating voltage. 12 201024991 w^/υουζ jul83twf.doc/n ^ Comparator, the first-input terminal of the comparator receives the reference signal, «Haibi rut The first-input terminal of 5 receives the side signal, and the comparator generates a comparison result to control the gate of the first semiconductor switch. 4. The apparatus for automatically adjusting the input power of the driver as described in claim 3 of the patent scope Wherein the first-semiconductor switch is a semiconductor switch. 5. The device for automatically adjusting an input power source as described in the scope of the invention of the invention, wherein the controller comprises: 一第二電阻； 1二電卩且’第—仙接該第二電阻的第二端 電阻的第二端耦接一接地電壓； ' —+ 7 一 第—半導體開關，第一源/没極搞接該第二電壓，第 = 該第二電阻的第—端，從該第二半導體開關 的第一源/及極提供該操作電壓；以及 _ 第運算放大器，第一輸入端耦接該偵測信號，第 ^入端麵接該第二電阻的第—端’輸出端搞接該 導體開關的閘極， 干 其中，該操作電壓隨該_信號的大小成_的變化。 入雷6·如申請專利範㈣5項所狀自動浦驅動器輸 …原之裂置’其中該第二半導體開關為N型半導體開關。 λ·7’如巾μ專利範圍第1項所述之自動調整驅動哭於 電源之巢置，其中該控制器包括： 〇〇 m 一第四電阻，該第四電阻的第二端_接—接 -第五電阻； 麼’ 一第-電容器’該第-電容器的第—端祕該第五電 13 201024991 / VOV厶 ^v>183twf.doc/n 阻的第;:電器”二端咖接地電壓； 阻的第一立山電容器的第—端輛接該第四電 二端；-电容器的第二端耦接該第五電阻的第 -语m導體開關，第二源她_該第二電壓，第 :!曰楚一弟—電容器的第-端與該第五電阻的第 蜢，且第一源/汲極提供該操作電壓丨以及 •本阻=輪=接該_信號，第 導體開關的，㈣—端，輸出端_該第三半 偵測信號的大小成比例的變化。 入電源之裝置，其===7驅動器輸 9.如申請專利範圍第tt體開關_型半導體開關。 入電源之裝置，其中該控制器^34之自_整驅動器輸 一第一電感器，該笫―雪成。„ . • 壓； 電感為的第一端耦接該第二電 一第二電感器，該笫_番成口。 壓的輸出； 《盗的第二端提供該操作電 一第三電容器，該筮二 感器的第二端，該第二電^ =的第一端輕接該第二電 -第四半導體開關，^的弟—端输—接地電墨； 第二端，第二源/没極接源$極耗接該第-電感器的 -第五半導體開：t = ^ 第五+導__第-源/_ 14 201024991 \jy / uovz. j\) 183twf.d〇〇/n 耦接該第四半導體開關的第二源/汲極，該第五半導體開關 的第二源/汲極耦接該接地電壓； 一第三運算放大器，第一輸入端耦接該偵測信號，第 二輸入端耦接該第二電感器的第二端；以及 一電源轉換器，其接收該第三運算放大器的輸出電壓 來啟動該電源轉換器，該電源轉換器的上閘驅動接腳耦接 該第四半導體開關的閘極，該電源轉換器的下閘驅動接腳 耦接該第五半導體開關的閘極， 其中，該操作電壓隨該偵測信號的大小成比例的變化。 10.如申請專利範圍第9項所述之自動調整驅動器輸 入電源之裝置，其中該第四半導體開關與該第五半導體開 關為N型半導體開關。 ❿ 15a second resistor; a second source and a second terminal of the second resistor connected to a ground voltage; '-+7 a first semiconductor switch, the first source/no pole Interconnecting the second voltage, the first end of the second resistor, the operating voltage is supplied from the first source/pole of the second semiconductor switch; and the first operational input, the first input is coupled to the detect The signal is measured, and the first end end of the second resistor is connected to the gate of the conductor switch, and the operating voltage is changed according to the size of the signal. Into the mine 6 · as in the patent application (four) 5 items of the automatic pump driver ... the original semiconductor switch is the N-type semiconductor switch. λ·7', as described in the first paragraph of the patent scope, the automatic adjustment drive is crying in the power supply nest, wherein the controller comprises: 〇〇m a fourth resistor, the second end of the fourth resistor is connected Connected-fifth resistor; ??? 'a first-capacitor' the first capacitor of the first capacitor, the fifth power 13 201024991 / VOV厶^v> 183twf.doc / n resistance of the first;: electrical" two-end coffee ground The first end of the first vertical capacitor of the resistor is connected to the fourth electric two end; the second end of the capacitor is coupled to the first word m conductor switch of the fifth resistor, and the second source is the second voltage , the first: the first end of the capacitor and the third end of the fifth resistor, and the first source / drain provides the operating voltage 丨 and • the current resistance = wheel = connected to the _ signal, the first conductor switch , (four) - terminal, output _ the third half of the detection signal is proportional to the size of the change. In the power supply device, its ===7 driver input 9. As claimed in the patent range tt body switch _ type semiconductor switch. a device for inputting power into the power device, wherein the controller 314 outputs a first inductor from the _ whole driver, and the 笫-雪成. The first end of the inductor is coupled to the second electric second to the second inductor, and the 端 is formed. The output of the voltage; the second end of the stolen circuit provides the third capacitor of the operation, the second end of the second sensor, the first end of the second electric device is lightly connected to the second electric-fourth semiconductor switch , ^ brother's brother - terminal transmission - grounded ink; second end, second source / no pole source $ pole consumes the first - inductor - fifth semiconductor open: t = ^ fifth + lead __ - source /_ 14 201024991 \jy / uovz. j\) 183twf.d〇〇 / n is coupled to the second source / drain of the fourth semiconductor switch, the second source / drain of the fifth semiconductor switch is coupled a third operational amplifier, a first input coupled to the detection signal, a second input coupled to the second end of the second inductor, and a power converter receiving the third operational amplifier The output voltage is used to activate the power converter, the upper gate drive pin of the power converter is coupled to the gate of the fourth semiconductor switch, and the lower gate drive pin of the power converter is coupled to the gate of the fifth semiconductor switch The pole, wherein the operating voltage varies proportionally with the magnitude of the detected signal. 10. The apparatus for automatically adjusting a driver input power source according to claim 9, wherein the fourth semiconductor switch and the fifth semiconductor switch are N-type semiconductor switches. ❿ 15
TW097151895A 2008-12-31 2008-12-31 Apparatus for auto-regulating the input power source of driver TWI385510B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104682692A (en) * 2013-11-29 2015-06-03 技嘉科技股份有限公司 Power management unit

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8994357B2 (en) * 2011-05-12 2015-03-31 Marvell Israel (M.I.S.L) Ltd. Load adaptive loop based voltage source
US8698403B2 (en) * 2012-05-10 2014-04-15 Rhine Electronic Co., Ltd. Electric protection mechanism for light controller
KR101781371B1 (en) 2013-07-25 2017-09-25 삼성전자 주식회사 Electronic apparatus and power controlling method thereof
US9502982B2 (en) * 2013-07-30 2016-11-22 Fairchild (Taiwan) Corporation Method and apparatus of frequency modulation for power saving of adaptive power converter
FR3053857B1 (en) 2016-07-07 2020-03-27 Commissariat A L'energie Atomique Et Aux Energies Alternatives CIRCUIT FOR SELECTING A SUPPLY VOLTAGE WITH CONTROLLED TRANSITION
US10268260B2 (en) * 2017-08-07 2019-04-23 Ryantek Co., Ltd. ATX dual-output power supply unit with buck detection compensation ability

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6198262B1 (en) * 1998-11-20 2001-03-06 Compaq Computer Corporation Selective dual input low dropout linear regulator
US6188206B1 (en) * 1999-12-08 2001-02-13 Intel Corporation Dynamic hysteresis voltage regulation
WO2002087054A1 (en) * 2001-04-17 2002-10-31 Matsushita Electric Industrial Co., Ltd. Battery-driven electronic device and mobile communication apparatus
JP3578124B2 (en) * 2001-08-31 2004-10-20 ソニー株式会社 Switching power supply
US7064530B2 (en) * 2004-03-30 2006-06-20 Intel Corporation Voltage regulator current sensing
JP4390620B2 (en) * 2004-04-30 2009-12-24 Ｎｅｃエレクトロニクス株式会社 Voltage regulator circuit
US7508176B2 (en) * 2004-05-14 2009-03-24 O2Micro International Limited Controller for a DC to DC converter having linear mode and switch mode capabilities
JP3739006B1 (en) * 2004-11-04 2006-01-25 ローム株式会社 Power supply device and portable device
JP4685531B2 (en) 2005-07-11 2011-05-18 ローム株式会社 STEP-DOWN SWITCHING REGULATOR, ITS CONTROL CIRCUIT, AND ELECTRONIC DEVICE USING THE SAME
US7230408B1 (en) * 2005-12-21 2007-06-12 Micrel, Incorporated Pulse frequency modulated voltage regulator with linear regulator control
US7446515B2 (en) * 2006-08-31 2008-11-04 Texas Instruments Incorporated Compensating NMOS LDO regulator using auxiliary amplifier
JP4907275B2 (en) * 2006-09-01 2012-03-28 株式会社リコー Power supply device and operation control method thereof
JP4823003B2 (en) * 2006-09-28 2011-11-24 富士通セミコンダクター株式会社 Control circuit for synchronous rectification type power supply device, synchronous rectification type power supply device and control method thereof
US8294441B2 (en) * 2006-11-13 2012-10-23 Decicon, Inc. Fast low dropout voltage regulator circuit
TWI337798B (en) * 2007-03-14 2011-02-21 Advanced Analog Technology Inc Low voltage circuit for starting up synchronous step-up dc/dc converter and method thereof
US7710091B2 (en) * 2007-06-27 2010-05-04 Sitronix Technology Corp. Low dropout linear voltage regulator with an active resistance for frequency compensation to improve stability
TWI353553B (en) * 2007-12-26 2011-12-01 Asustek Comp Inc Cpu core voltage supply
CN101295204B (en) 2008-04-30 2010-12-08 华硕电脑股份有限公司 Multi-phase voltage regulator on motherboard
TWI380547B (en) * 2008-07-17 2012-12-21 Asustek Comp Inc Power supply and over voltage protection apparatus and method therein
JP2010136510A (en) * 2008-12-03 2010-06-17 Panasonic Corp Step-down switching regulator
TWI368374B (en) * 2008-12-31 2012-07-11 Asustek Comp Inc Current regulator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104682692A (en) * 2013-11-29 2015-06-03 技嘉科技股份有限公司 Power management unit

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